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ziro4ka [17]
3 years ago
6

Y = f(x) = 2x Find f(x) when x = 2. Enter the correct answer.

Mathematics
2 answers:
Ratling [72]3 years ago
7 0

Answer:

f(2)= 4

Step-by-step explanation:

To find f(2) we will use y=2x since f(x)=y

●y=2*2= 4 wich is f(2)

sdas [7]3 years ago
6 0

Answer:

<h2>f(x) = 4</h2>

Step-by-step explanation:

f(x) = 2x

When x = 2

Substitute the value of x into f(x)

That's

f(2) = 2(2)

= 4

Hope this helps you

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Clara found the product of 3 – 6y2 and y2 + 2. Her work is shown below. (3 – 6y2)(y2 + 2) = 3(y2) + (–6y2)(2) = 3y2 – 12y2 = –9y
Lilit [14]
No he's not correct

<span>(3 – 6y2)(y2 + 2)  
= 3(y2) -6(y2)(y2)  - 6y2(2) </span>+ 3(2)<span>
= 3y2 -6y4 - 12y2 </span>+ 6 <span>
= -6y4 - 9y2 +6</span>
3 0
3 years ago
What is the focus of the parabola?<br><br> y=−14x2−2x−2
nataly862011 [7]
First, we need to transform the equation into its standard form (x - h)²=4p(y - k).
Using completing the square method:

y = -14x² - 2x - 2
y = -14(x² + 2x/14) - 2
y = -14(x² + 2x/14 + (2/28)²) -2 + (2/28)²
y = -14(x + 1/14)² - 391/196
-1/14(y + 391/196) = (x + 1/14)²

This is a vertical parabola and its focus <span>(h, k + p) is (-1/14, -391/196 + 1/56) = (-1/14, -775/392).

Or (-0.071,-1.977).</span>
3 0
3 years ago
Please help me. It's my birthday but my dad says I have to do this assignment first so please help me.
zzz [600]

Answer:

standard deviation is a quantity calculated to indicate the extent of deviation for a group as a whole.

Residual analysis is used to assess the appropriateness of a linear regression model by defining residuals and examining the residual plot graphs.

Happy Birthday!!!!!!

7 0
3 years ago
What is the linear equation for 3x+2y=62
scZoUnD [109]
<span>In this formula :

</span><span>y </span>tells us how far up the line goes
<span>x </span>tells us how far along
<span>m </span>is the Slope or Gradient i.e. how steep the line is
<span>b </span>is the Y-intercept i.e. where the line crosses the Y axis

The X and Y intercepts and the Slope are called the<span> line properties.</span><span> We shall now graph the line </span><span> 3x+2y-62  = 0</span><span> and calculate its properties
</span>

Notice that when x = 0 the value of y is 31/1 so this line "cuts" the y axis at y=31.00000

<span>  y-intercept = 62/2 = 31
</span>

When y = 0 the value of x is 62/3 Our line therefore "cuts" the x axis at x=20.66667

<span>  x-intercept = 62/3 = 20.66667

</span>

Slope is defined as the change in y divided by the change in x. We note that for x=0, the value of y is 31.000 and for x=2.000, the value of y is 28.000. So, for a change of 2.000 in x (The change in x is sometimes referred to as "RUN") we get a change of 28.000 - 31.000 = -3.000 in y. (The change in y is sometimes referred to as "RISE" and the Slope is m = RISE / RUN)

<span>  Slope = -3.000/2.000 = -1.500

</span><span>
1.Slope = -3.000/2.000 = -1.500 

2.x-intercept = 62/3 = 20.66667<span> 

3.y-intercept = 62/2 = 31


I got sources from a few websites so excuse if something is weird/wrong.  
</span></span>
4 0
3 years ago
Helpp me will give brainliest!!!!
olga_2 [115]

Let's find area of the base.: 5x4.3=21.5, 21.5/2=10.75

Area of the Faces : 5x3=15/2=7.5x4=30

Let's add 10.75 +30=40.75

5 0
2 years ago
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